The Wedge 1983-1987 AMC Alliance seat brackets are adapters that will adapt most aftermarket seats to the 1983-1987 AMC Alliance factory seat sliders. As with all Wedge seat brackets, if for any reason this bracket is not a perfect fit, please let us know and we'll make it right. Please note your ride height is more influenced by the thickness of the seat cushion not the height of the bracket. In most cases we design the bracket to ride at the optimal height based on the thickness of the stock seat cushion.